ELECTRICAL ADJUSTMENTS
2-6: WHITE BALANCE2-10: VERTICAL SIZE
NOTE: Adjust after performing CUT OFF adjustment. 1. Receive the monoscope pattern from the Pattern
Generator.
1.Place the set with Aging Test for more than 15 minutes.
2. Using the remote control, set the brightness and2.Receive the gray scale pattern from the Pattern
contrast to normal position.
3. Activate the adjustment mode display of Fig. 1-1 andGenerator.
3.Using the remote control, set the brightness and
press the channel button (11) on the remote control tocontrast to normal position.
select "V SIZE (50)".
4. Adjust by using the VOL. +/- button on the remote4.Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
control so that the Up/Down OVER SCAN Quantityselect "R DRIVE".
becomes equal to the Right/Left OVER SCAN Quantity.
5. Receive a broadcast and check if the picture is normal.5.Press the Page UP/DOWN button on the remote control
to select the "R DRIVE", "G DRIVE", "M R CUTOFF" or
6. Receive the monoscope pattern of NTSC. (Audio Video"M G CUTOFF".
Input)
6.Adjust the VOL. +/- button on the remote control to
7. Using the remote control, set the brightness andwhiten the R DRIVE, G DRIVE, M R CUT OFF, and M G
contrast to normal position.
8. Activate the adjustment mode display of Fig. 1-1 andCUT OFF at each step tone sections equally.
7.Perform the above adjustments 5 and 6 until the white
press the channel button (12) on the remote control tocolor is looked like a white.
select "V SIZE (60)".
9. Adjust by using the VOL. +/- button on the remote
2-7: FOCUS
control so that the Up/Down OVER SCAN Quantity
1. Receive an 70dB monoscope pattern.becomes equal to the Right/Left OVER SCAN Quantity.
2. Turn the Focus Volume fully counterclockwise once.10.Receive a broadcast and check if the picture is normal.
3. Adjust the Focus Volume until picture is distinct.
2-11: BRIGHT CENT
2-8: HORIZONTAL POSITION
1.Receive the PAL black pattern*. (RF Input)
1.Receive the monoscope pattern from the Pattern 2.Using the remote control, set the brightness and
Generator.contrast to normal position.
2.Using the remote control, set the brightness and3.Place the set with Aging Test for more than 15 minutes.
contrast to normal position.4.Activate the adjustment mode display of Fig. 1-1 and
3.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (17) on the remote control to
press the channel button (08) on the remote control toselect "BRIGHT CENT".
select "H POSI (50)".5.Press the VOL. +/- button on the remote control until
4.Press the VOL. +/- button on the remote control untilthe screen begin to shine.
the SHIFT quantity of the OVER SCAN on right and left6Receive the PAL black pattern*. (Audio Video Input)
becomes minimum.7.Set to the AV mode. Then perform the above
5.Receive the monoscope pattern of NTSC. (Audio Videoadjustments 2~5.
Input)
*The Black Pattern means the whole black raster signal.
Select the "RASTER" of the pattern generator, set to6.Using the remote control, set the brightness and
contrast to normal position.
the OFF position for each R, G and B.7.Activate the adjustment mode display of Fig. 1-1 and
2-12: CONTRAST CENTpress the channel button (39) on the remote control to
select "H POSI (60)".
8.Press the VOL. +/- button on the remote control until1.Activate the adjustment mode display of Fig. 1-1 and
the SHIFT quantity of the OVER SCAN on right and leftpress the channel button (22) on the remote control to
becomes minimum.select "CONTRAST CENT".
2.Press the VOL. +/- button on the remote control until
2-9: VERTICAL POSITION, VERTICAL LINEARITYthe contrast step No. becomes "35".
3.Receive a broadcast and check if the picture is normal.
1.Receive the monoscope pattern from the pattern
4.Set to the AV mode. Then perform the aboveGenerator.
adjustments 1~3.2.Using the remote control, set the brightness and
contrast to normal position.
3.Adjust the VR401 until the horizontal line becomes fit to
the notch of the shadow mask.
4.Adjust the VR420 until the SHIFT quantity of the OVER
SCAN on upside and downside becomes minimum.
D-2 |
ACEC
TOSHIBA
